Age Calculator

Find your exact age in a second

You may need your exact age for an official form, a job or scholarship with an age requirement, retirement eligibility — or just out of curiosity. This tool calculates your age in years, months and days precisely, accounting for varying month lengths and leap years, and adds fun facts such as how many days you've lived and your approximate heartbeats.

What the calculator shows

• Your exact age in years, months and days.
• The weekday you were born.
• Your total age in months, weeks, days, hours and minutes.
• Days remaining until your next birthday and its date.
• Your age in the Hijri (Islamic) calendar and your Hijri birth date (Umm al-Qura).

Why does Hijri age differ?

The Hijri year is about 11 days shorter than the Gregorian year because it follows the lunar cycle (about 354 days). So your Hijri age gains roughly one extra year every 33 years — someone who is 33 in Gregorian years is about 34 in Hijri years.

How the calculation works

We subtract your birth date from the target date: years first, then months, then days. If your birth day-of-month is later than the target's, we borrow a month and add the number of days in the previous month. For example, from March 25 to May 10 is 1 month and 15 days (because March has 31 days).

Other uses

• Change “Age at date” to find your age on a future date, such as an application deadline.
• Track a baby's age in months and days.
• Measure the gap between any two dates with Date Difference.
• Convert your birth date between calendars with the Hijri Converter.

Frequently Asked Questions

Last updated: 2026-10-20